Thin Disk Laser Development for Space Debris Monitoring and Mitigation

Autor: Jochen Speiser, Benjamin Ewers, Jürgen Kästel, Raoul-Amadeus Lorbeer, Daniel Oberbeckmann, Daniel Sauder, Birgit Weichelt

Space debris laser tracking is a versatile tool for mitigation of collision risks in low earth orbit. Thin Disk lasers are highly suitable to provide the required laser parameters. A transportable kW-class pulsed laser system was developed and tested

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abc9439a52f0ff68d7fa20d6282c4372
https://elib.dlr.de/193131/

Measuring the α-particle charge radius with muonic helium-4 ions

Autor: Sandrine Galtier, Julian J. Krauth, Andreas Knecht, Andreas Dax, D. Taqqu, Thomas Graf, Paul Indelicato, Yi-Wei Liu, Karsten Schuhmann, Andreas Voss, F. Mulhauser, Pedro Amaro, Malte Hildebrandt, D. S. Covita, L.M.P. Fernandes, Boris Naar, F. D. Amaro, Theodor W. Hänsch, Marwan Abdou Ahmed, José Paulo Santos, Andrea L. Gouvea, Lucile Julien, Randolf Pohl, Johannes Götzfried, F. Nez, Beatrice Franke, Jorge Machado, Tobias Nebel, C.M.B. Monteiro, J.F.C.A. Veloso, Joaquim M. F. dos Santos, François Biraben, Franz Kottmann, Marc Diepold, Csilla I. Szabo, Jens Hartmann, Jan Vogelsang, Klaus Kirch, Aldo Antognini, Tzu-Ling Chen, Birgit Weichelt

Publikováno v: Nature
Nature, Nature Publishing Group, 2021, 589 (7843), pp.527-531. ⟨10.1038/s41586-021-03183-1⟩
Nature, 589(7843), 527-531. Nature Publishing Group
Nature, 589 (7843)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Krauth, J J, Schuhmann, K, Ahmed, M A, Amaro, F D, Amaro, P, Biraben, F, Chen, T L, Covita, D S, Dax, A J, Diepold, M, Fernandes, L M P, Franke, B, Galtier, S, Gouvea, A L, Götzfried, J, Graf, T, Hänsch, T W, Hartmann, J, Hildebrandt, M, Indelicato, P, Julien, L, Kirch, K, Knecht, A, Liu, Y W, Machado, J, Monteiro, C M B, Mulhauser, F, Naar, B, Nebel, T, Nez, F, dos Santos, J M F, Santos, J P, Szabo, C I, Taqqu, D, Veloso, J F C A, Vogelsang, J, Voss, A, Weichelt, B, Pohl, R, Antognini, A & Kottmann, F 2021, ' Measuring the α-particle charge radius with muonic helium-4 ions ', Nature, vol. 589, no. 7843, pp. 527-531 . https://doi.org/10.1038/s41586-021-03183-1

The energy levels of hydrogen-like atomic systems can be calculated with great precision. Starting from their quantum mechanical solution, they have been refined over the years to include the electron spin, the relativistic and quantum field effects,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0f0ae4cca3321998538d56d31b624ce
https://hal.archives-ouvertes.fr/hal-03132344/file/s41586-021-03183-1.pdf

Publisher Correction: Measuring the α-particle charge radius with muonic helium-4 ions

Autor: F. Mulhauser, Franz Kottmann, Birgit Weichelt, J.F.C.A. Veloso, Jens Hartmann, Thomas Graf, José Paulo Santos, Tzu-Ling Chen, Julian J. Krauth, Paul Indelicato, D. S. Covita, Marwan Abdou Ahmed, Beatrice Franke, Randolf Pohl, Malte Hildebrandt, L.M.P. Fernandes, Csilla I. Szabo, Johannes Götzfried, C.M.B. Monteiro, François Biraben, Theodor W. Hänsch, Sandrine Galtier, Pedro Amaro, Klaus Kirch, Aldo Antognini, Andrea L. Gouvea, Andreas Dax, Andreas Knecht, Boris Naar, Marc Diepold, Yi-Wei Liu, Jan Vogelsang, F. D. Amaro, Andreas Voss, F. Nez, Lucile Julien, Jorge Machado, Karsten Schuhmann, Joaquim M. F. dos Santos, Tobias Nebel, D. Taqqu

Publikováno v: Nature
Krauth, J J, Schuhmann, K, Ahmed, M A, Amaro, F D, Amaro, P, Biraben, F, Chen, T L, Covita, D S, Dax, A J, Diepold, M, Fernandes, L M P, Franke, B, Galtier, S, Gouvea, A L, Götzfried, J, Graf, T, Hänsch, T W, Hartmann, J, Hildebrandt, M, Indelicato, P, Julien, L, Kirch, K, Knecht, A, Liu, Y W, Machado, J, Monteiro, C M B, Mulhauser, F, Naar, B, Nebel, T, Nez, F, dos Santos, J M F, Santos, J P, Szabo, C I, Taqqu, D, Veloso, J F C A, Vogelsang, J, Voss, A, Weichelt, B, Pohl, R, Antognini, A & Kottmann, F 2021, ' Publisher Correction: Measuring the α-particle charge radius with muonic helium-4 ions ', Nature, vol. 591, no. 7850, pp. E18-E18 . https://doi.org/10.1038/s41586-021-03360-2

The energy levels of hydrogen-like atomic systems can be calculated with great precision. Starting from their quantum mechanical solution, they have been refined over the years to include the electron spin, the relativistic and quantum field effects,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb17e9c665e2854eb4262a33bb589ec6
http://europepmc.org/articles/PMC7969355

Experiments towards resolving the proton charge radius puzzle

Autor: A. Knecht, José Paulo Santos, David Taqqu, Andreas Dax, Theodor W. Hänsch, Thomas Graf, Jorge Machado, Randolf Pohl, L.M.P. Fernandes, Marc Diepold, Françoise Mulhauser, F. D. Amaro, B. Franke, Malte Hildebrandt, Karsten Schuhmann, A. L. Gouvea, Pedro Amaro, Paul Indelicato, Yi-Wei Liu, Julian J. Krauth, C.M.B. Monteiro, S. Galtier, M. Abdou-Ahmed, L. Julien, D. S. Covita, Klaus Kirch, Aldo Antognini, J.F.C.A. Veloso, Csilla I. Szabo, Birgit Weichelt, J.M.F. dos Santos, Andreas Voss, Tzu-Ling Chen, François Nez, Franz Kottmann, François Biraben, Johannes Götzfried

Publikováno v: EPJ Web of Conferences
Antognini, A, Schuhmann, K, Amaro, F D, Amaro, P, Abdou-Ahmed, M, Biraben, F, Chen, T L, Covita, D S, Dax, A J, Diepold, M, Fernandes, L M P, Franke, B, Galtier, S, Gouvea, A L, Götzfried, J, Graf, T, Hänsch, T W, Hildebrandt, M, Indelicato, P, Julien, L, Kirch, K, Knecht, A, Kottmann, F, Krauth, J J, Liu, Y W, Machado, J, Monteiro, C M B, Mulhauser, F, Nez, F, Santos, J P, Dos Santos, J M F, Szabo, C I, Taqqu, D, Veloso, J F C A, Voss, A, Weichelt, B & Pohl, R 2016, Experiments towards resolving the proton charge radius puzzle . in Experiments towards resolving the proton charge radius puzzle . vol. 113, EPJ Web of Conferences, 21st International Conference on Few-Body Problems in Physics, FB 2015, Chicago, United States, 18/05/15 . https://doi.org/10.1051/epjconf/201611301006
EPJ Web of Conferences, Vol 113, p 01006 (2016)
Experiments towards resolving the proton charge radius puzzle, 113
EPJ Web of Conferences, 113

We review the status of the proton charge radius puzzle. Emphasis is given to the various experiments initiated to resolve the conflict between the muonic hydrogen results and the results from scattering and regular hydrogen spectroscopy.
EPJ We

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::075e62ec63df0ff100821389781a94c6
https://hdl.handle.net/11858/00-001M-0000-002C-0B50-211858/00-001M-0000-002C-0B4E-A

A 670 W Yb:Lu2O3 thin-disk laser

Autor: A. Voss, Birgit Weichelt, Th. Graf, Katrin Wentsch, M. Abdou Ahmed

Publikováno v: Laser Physics Letters. 9:110-115

We report on what is, to the best of our knowledge, the highest power reached with an Yb:Lu2O3 thin-disk laser in the continuous wave (CW) regime reported to date. A maximum output power of 670 W was demonstrated with a V-shaped resonator design. Thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::327e466e51ed1f3aced9adfb7518bcbf
https://doi.org/10.1002/lapl.201110104